Hi aseth,
if you are using SVN under windows you can use also the Shell extension plugin (http://developer.berlios.de/projects/cbilplugin/). This plugin is a file explorer in codeblocks and supports shell extension and SVN decorators as overlay icon. TortoiseSVN offers the possibilty to use the context menu in the windows explorer or to perform the commands in a cmd. For example:
TortoiseProc.exe /command:diff /path:$file
will diff the working copy with SVN base. So you have access to all TortoiseSVN commands in the command line. You can use this feature to do the following thing. Add an entry e.g. diff in the Shell extension plugin and specify the above command. If you now select a file in the file explorer of CB it will be the same as you are using the windows explorer. That is really cool :D. A few day ago I saw that something similar exists also for linux called toytoiseSVN, now renamed to SubdriverSVN (http://subdiversvn.sourceforge.net/). I could not try until now, but if it has also a command interface it can be use like the above example too.
Bye,
Mario